13C Nuclear Magnetic Resonance Spectra of Hydrolyzable Tannins. II. Tannins Forming Anomer Mixtures

Tsutomu Hatano; Takashi Yoshida; Takuo Okuda; Tetsuro Shingu

doi:10.1248/cpb.36.2925

¹³C Nuclear Magnetic Resonance Spectra of Hydrolyzable Tannins. II. Tannins Forming Anomer Mixtures

Tsutomu Hatano, Takashi Yoshida, Takuo Okuda, Tetsuro Shingu

Research output: Contribution to journal › Article

47 Citations (Scopus)

Abstract

The glucose carbon signals in the ¹³C nuclear magnetic resonance (NMR) spectra of hydrolyzable tannins forming anomer mixtures, which differ from each other in the locations of acyl groups, were assigned. The utility of these data was demonstrated by application to the structural assignments of recently isolated dimeric hydrolyzable tannins [e.g., camptothin A (and camptothin B (14)].

Original language	English
Pages (from-to)	2925-2933
Number of pages	9
Journal	Chemical and Pharmaceutical Bulletin
Volume	36
Issue number	8
DOIs	https://doi.org/10.1248/cpb.36.2925
Publication status	Published - Jan 1 1988

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Keywords

2D NMR
C-NMR
anomer mixture
camptothin A
camptothin B
cornusiin A
dimeric hydrolyzable tannin
ellagitannin
rugosin E
tannin

ASJC Scopus subject areas

Chemistry(all)
Drug Discovery

Cite this

Hatano, T., Yoshida, T., Okuda, T., & Shingu, T. (1988). ¹³C Nuclear Magnetic Resonance Spectra of Hydrolyzable Tannins. II. Tannins Forming Anomer Mixtures. Chemical and Pharmaceutical Bulletin, 36(8), 2925-2933. https://doi.org/10.1248/cpb.36.2925

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Access to Document

10.1248/cpb.36.2925